Improvement in pneumatic actions for pipe-organs



J'. EGAN.

PNEUMATIC ACTIONS FOR PIPE-ORGANS. No. '179,902. 'P atented J'u1y18. 1876 N. FETERS. HOTOLITHDGRAFHER. WASHINGTON. D. c,

UNITED STATES PATENT OFFICE,

JOHN EGAN, OF MILWAUKEE, WISCONSIN.

IMPROVEMENT IN PNEUMATIC ACTIONS FOR PlPE-ORGANS.

Specification forming part of Letters Patent No. l 79,902, dated July 18, 1876 application filed January 6, 1876.

To all whom 't may cant-em Be it known that I, JOHN EGAN, ofMilwaukee, in the county of Milwaukee, in the State ot' Wisconsin, have invented certain Improvements in Pneunatic Acion on Sound-Boards of Organs, ot' which the following is a speciication:

The object of my in vention is to give quicker and ino'e certain action in the pneumatic action on sound-boards of organs; and consists in the const'uction of parts, as hereinafter described, to give a particularly-quick movement of the valves, by which the operator may have complete control of the organ.

Figure 1 is a sectional View of my inven tion.

A is the outside case; B, the lower or outside valve; O, the middle valve; D, rod with which .the valve U is held open; E, spring which closes the valve B; E, the bellows; G, upper Valve, which opens to let air to the pipe I H, spring attached to and keeps the upper valve closed; I, organ-pipe K, rod attached to valve B, which, With a pedal or manual key, operates the valves B and G; L, airchamber; M, air-passage to the bellows; O, air-passage to the air-chamber; P, a stop on rod D, which holds valveC open; Q,rod with lows collapses it, and the projection R on the end ot" the bellows opens valve G and lets the air pass to the pipe, and the organ sounds, and when the valve U iselesed again the air passes through passage M to the inside of the* bellows, and it is ready for action again, the bellows being inflated by the action of spring H, which closes the valve Gr at the same time.

I claim In a pueumatic action for organs, the valves B, C, and G, the spring E, and bellows F, c0mbiued and arranged to operate substantially as and for the purpose described.

JOHN EGAN.

Wituesses:

J. B. SMITH, EDWARD HARRIS. 

